Asperm fertilized an egg. which two structures will the fertilized egg contact?
ovary and fallopian tubes
fallopian tubes and uterus
uterus and cervix
cervix and ovary

The correct answer is option B, fallopian tubes and uterus

When a sperm fertilizes an egg, zygote is formed. This zygote then moves into the fallopian tube, and reaches the uterus where it get implanted to the uterus wall. After implantation the zygote further divides to form blastula and finally form embryo. The embryo stays in uterus till gestation. Thus it is clear that after fertilization the zygote only moves through fallopian tube till it reaches uterus.

step 1: initiation

initiation is the beginning of transcription. it occurs when the enzyme rna polymerase binds to a region of a gene called the promoter. this signals the dna to unwind so the enzyme can ‘‘read’’ the bases in one of the dna strands. the enzyme is now ready to make a strand of mrna with a complementary sequence of bases.

step 2: elongation

elongation is the addition of nucleotides to the mrna strand. rna polymerase reads the unwound dna strand and builds the mrna molecule, using complementary base pairs. there is a brief time during this process when the newly formed rna is bound to the unwound dna. during this process, an adenine (a) in the dna binds to an uracil (u) in the rna.

step 3: termination

termination is the ending of transcription, and occurs when rna polymerase crosses a stop (termination) sequence in the gene. the mrna strand is complete, and it detaches from dna.

the actual answer was 160934